Apparatus for developing printing plates comprising upper and lo

Details Apparatus for developing printing plates comprising upper and lo Apparatus for developing printing plates comprising upper and lo

1979-03-22

1980-06-10

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Wiping

100168, 226176, G03D 506, B30B 304

Patent

active

042065275

ABSTRACT:
This invention relates to an improvement in an apparatus for developing printing plates comprising pairs of upper and lower rolls adapted to convey said printing plates, bearing means at each end of each upper roll, and toggle lever means adapted to raise and lower said upper rolls with respect to said lower rolls, the improvement comprising a plurality of pivotal forked head means each having an upper and lower arm adapted to engage each of said bearing means, swivel shaft means supporting said forked head means and being parallel to the conveying direction of said printing plates, said upper arms of said forked head means being adapted to exert pressure on the top of said bearing means when said bearing means is in a lowered position, and said lower arms of said forked head means being adapted to support said bearing means in a raised position, means connecting one end of a toggle lever means to each forked head means, and means connecting the other end of said toggle lever means to a rotatable control shaft means which is parallel to the conveying direction of said printing plates.

REFERENCES:
patent: 3055242 (1962-09-01), Wilson
patent: 3252311 (1966-05-01), Boyer

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